Frequently asked questions (FAQ)
Here you will find answers to the most common questions about our spare parts and furniture parts compatible with USM Haller – from compatibility and colors to shipping, payment and returns, as well as assembly, the 3D configurator, wholesale and our interfaces for retailers. Your question is not listed? Write to us in the live chat or at service@modula24.com.
Products and compatibility
Are your parts compatible with USM Haller?
Yes. Our balls, tubes, connectors, panels, flap doors, pull-out shelves and accessories match the USM Haller system in dimensions, grid and thread (M6). You can use them to extend an existing piece of furniture, replace individual parts or build a completely new piece – also mixed with original parts. These are compatible parts, not original parts from USM.
Do the parts fit the 1st and the 2nd generation?
Balls, tubes, panels, flap doors and pull-out shelves fit both generations. The difference lies in the connectors and the tools: for 1st-generation furniture you need the 1st-generation connector puller, for the 2nd generation the 2nd-generation connector puller. The two tools are not interchangeable. More in the article 1st vs. 2nd generation.
How do I tell which generation my furniture is?
By the connector that joins tube and ball: the 1st-generation connector consists of three parts (one screw and two outer clamps), the 2nd-generation connector of two parts (screw with plastic sleeve and external thread). The 2nd generation replaced the first around 1990. Visually, the furniture hardly differs.
In which colors are panels, flap doors and pull-out shelves available?
In 11 RAL colors: Pure White (RAL 9010), Graphite Black (RAL 9011), Light grey (RAL 7035), Anthracite grey (RAL 7016), Beige (RAL 1019), Olive green (RAL 6003), Golden yellow (RAL 1004), Pure orange (RAL 2004), Ruby red (RAL 3003), Gentian blue (RAL 5010), Steel blue (RAL 5011). Which size is currently available in which color is shown on the respective product page. More about the colors in the article USM Haller colors.
Which sizes are available?
Outer panels come in 35 × 35, 50 × 35, 75 × 35 and 75 × 50 cm, flap doors in 35 × 35, 50 × 35 and 75 × 35 cm, pull-out shelves (drawers) in 50 × 35 and 75 × 35 cm, glass shelves in 35 × 35, 50 × 35 and 75 × 35 cm and inner shelves in 35 × 35 cm. The basic grid of the system is 75 cm wide and 35 cm deep. Not every size is in stock in every color – the product page shows the current status.
Which tube lengths do you have?
100, 125, 150, 175, 200, 225, 250, 275, 300, 350, 395, 500, 595, 750 mm, plus 750 mm tubes with a hole and with a slot and hole. You can find all lengths under Tubes, and an overview in the article Tubes: all lengths and dimensions.
What material are the parts made of?
Tubes and balls are made of chrome-plated steel, panels, flap doors and pull-out shelves of powder-coated sheet steel, and the glass shelves of tempered safety glass. The powder coating is robust and can be cleaned with a damp cloth – tips in the article Care instructions.
Do you also make custom sizes or custom colors?
Yes, on request: tubes in special lengths, panels, side panels and flap doors in custom sizes and custom colors, glass and other parts. Send us the part, dimensions, color and quantity in the live chat or at service@modula24.com. You will receive a quote with price and delivery time and can pay for it online as usual via a personal order link.
Are there glass doors or intermediate shelves?
We make glass doors (also with a lock) on request – they are not listed in the shop. Intermediate shelves or center shelves are currently not in our range. You can find glass outer panels and glass holders in the shop.
Are your parts original USM parts?
No. Modula24 is an independent supplier and is not affiliated with USM U. Schärer Söhne AG. USM Haller is a brand of USM; we use the name only to describe the compatibility of our parts. Our comparison offers a factual overview of original, used and compatible parts.
Ordering and payment
Which payment methods are available?
PayPal, credit and debit card, Apple Pay and Google Pay, and bank transfer (prepayment, euros only). You can see the available payment methods at checkout.
How does payment by bank transfer work?
Select “Bank transfer (prepayment)” at checkout and complete your order. On the confirmation page and by email you will receive our bank details, the amount and the order number as the payment reference. Please transfer the amount within 7 days. We ship as soon as the payment has been received.
Is there a minimum order value?
No. You can also order individual balls or connectors. Shipping costs are calculated by weight and destination country.
Is there a volume discount?
Yes, applied automatically in the cart and at checkout, without a code, on the goods value (excluding shipping): from €1,000: 15 %, from €3,000: 20 %, from €8,000: 30 %, from €20,000: 40 %, from €35,000: 50 %. From €50,000 we prepare an individual quote. The cart and checkout show how much is missing for the next tier. Monster boxes are excluded from discounts. Overview: Volume discount.
Can I combine discount codes with the volume discount?
No – the higher discount applies automatically. You enter discount codes at checkout; only active codes are valid.
How do I get the welcome discount?
Sign up for our newsletter (invitation on the website or the “Newsletter & 15 % discount” link at the very bottom). If you have not ordered from us yet, you will immediately receive a personal code for 15 % off the goods value of your first order. It is entered automatically at checkout.
Do I need a customer account?
No, you can order without registering. Under My orders you sign in with a code that we send to your email address: there you can see your orders and shipments, download invoices as PDF, reorder with one click and use your saved delivery addresses at checkout.
Will I receive an invoice?
Yes. After payment you can download the invoice as a PDF at any time under My orders. You can enter a company name and VAT ID at checkout; a different billing address is possible as well.
In which currency can I pay?
In euros or US dollars – you choose the currency at the top of the page. Bank transfer is only possible in euros.
Can I still change or cancel my order?
Please contact us as soon as possible in the live chat or at service@modula24.com with your order number. As long as the parcel is not yet on its way, we can usually still accommodate changes.
Shipping and delivery
Where do you ship from?
From our warehouse in Hamburg (Germany) with DHL. In the shop, the items that are in stock in Hamburg can be ordered. For some countries we also offer shipping methods from our warehouse in China (e.g. with 4PX or by air or sea freight to your door) – they then appear in the cart with price and delivery time.
How much does shipping cost?
Shipping costs are calculated exactly in the cart and at checkout for your destination country and the weight of your order. Examples for one parcel: Germany from €5.22 (up to 1 kg), €7.31 (5 kg), €14.92 (20 kg); Austria and France from €17.48; Switzerland from €22.36; USA from €37.59. There is no minimum order value for free shipping.
How long does delivery take?
After dispatch: Germany 1–2 working days, EU 3–5 working days, other countries with DHL Premium 3–6, with DHL Economy 5–10 working days. Goods in stock usually leave our warehouse on the same or the next working day after payment is received.
What is the difference between DHL Premium and DHL Economy?
DHL Premium delivers faster, right to your door. DHL Economy is cheaper and delivers to a parcel locker or branch nearby. Within the EU we always ship with DHL Premium; outside the EU you choose in the cart, and in most countries both are available.
Which countries do you deliver to?
To 44 countries, including all EU countries, Switzerland, the United Kingdom, Norway, the USA, Canada, Japan, South Korea, Australia and New Zealand. The full list can be found in the shipping policy. Other countries on request.
Do I have to deal with customs or import duties?
No. We take care of customs and import duties – for all shipping methods and all destination countries. For South Korea we need your personal customs code (PCCC) at checkout.
Do you also deliver on pallets?
Yes. From 100 kg, pallet shipping by freight forwarder appears automatically in the cart: up to 750 kg per pallet, within Germany €129 (2–5 working days), to other EU countries as well as to Switzerland, Norway and Iceland €250 per pallet (3–7 working days).
How can I track my shipment?
As soon as your parcel is on its way, you automatically receive an email with the tracking number and a link. You can also see your shipments under My orders. Large orders may arrive in several parcels – each has its own tracking number.
Can I have my order delivered to a parcel locker (Packstation)?
In Germany, yes: enter “Packstation” with its number and your DHL customer number (Postnummer) as the address. Outside the EU, DHL Economy delivers to a parcel locker or branch near you anyway.
Returns, exchanges and complaints
Can I return items?
Yes, within 30 days of receipt. The items must be unused and in the original packaging. Please register the return beforehand at service@modula24.com with order number, item and reason – you will then receive the shipping instructions. We cover the cost of the return shipment. Details: Returns and withdrawal.
What should I do if a part is damaged or wrong?
Send us your order number and a photo in the live chat (image icon) or at service@modula24.com. We will send you a replacement free of charge.
When will I get my money back?
As soon as we have checked the returned items, we refund the amount to the original payment method. Depending on your bank or card provider, the credit may take a few days.
Assembly and tools
Which tools do I need?
For assembly, disassembly and rebuilding you need a suitable connector puller or a tool set: the Complete tool set with modular T-keys, the Professional tool set in a case or the Complete tool set in a case. For 1st-generation furniture you also need the 1st-generation connector puller. All tools: Tools.
Are there assembly instructions?
Yes, as a PDF to download (Assembly instructions) and step by step in the article How do I assemble a piece of furniture?. Many steps are also shown in our videos.
How do I loosen a stuck connector?
With the matching connector puller (1st or 2nd generation) – not with an ordinary Allen key, which easily slips. How it works is shown in the article Tools for assembly and disassembly and in the video on the 1st-generation connector under Videos.
Can I extend existing furniture with your parts?
Yes, that is exactly what the parts are made for. Measure the existing tubes or compartments and choose the matching tube lengths and panel sizes. With the 3D configurator you plan the extension and see the parts you need.
3D configurator and gallery
What can the 3D configurator do?
In the free 3D configurator you put together your furniture – shelf, sideboard, lowboard or cabinet – compartment by compartment, choose colors, flap doors, drawers and feet and instantly see the parts list, the weight and the price including volume discount. You can save the configuration, share it by ID and download it as a PDF.
Can I order directly from the configurator?
Yes. With “Add to cart”, all available parts go into your cart on modula24.com, also multiple times for several identical pieces of furniture. If parts are not in stock or custom sizes are needed, you can request a complete quote directly – we will get back to you with price and delivery time.
Wholesale and business customers
Are there terms for large quantities?
Yes. The discount scale applies automatically: from €1,000: 15 %, from €3,000: 20 %, from €8,000: 30 %, from €20,000: 40 %, from €35,000: 50 %. From €50,000 goods value we prepare an individual quote. For projects, retailers and interior fitters we also have our wholesale page with an inquiry form.
Can you prepare a quote with special parts?
Yes. We put together a quote with all items – including custom sizes – and fixed shipping costs. You receive a personal order link, enter your address and pay as usual by PayPal, card or bank transfer.
What are Monster boxes?
Bulk packs for high-volume users, e.g. several hundred connectors in one box at a particularly low unit price. Monster boxes are excluded from the volume discount and discount codes and do not count toward the discount scale.
Can I order as a company with a VAT ID?
Yes. Enter the company name and VAT ID at checkout, and if needed a different billing address as well. Both appear on the invoice, which you can download under My orders.
May retailers and dropshippers offer your products?
Yes. For retailers there is a stock list, product feeds and a shipping cost interface (see the section “API and data”). More in the article API for retailers, dropshippers and B2B customers – for terms, feel free to write to us.
API and data for retailers
Is there an API?
Yes, public and free interfaces without registration (read-only): stock API with warehouse stock in Hamburg and shop prices, stock list as CSV, shipping cost API (for a cart, a weight or a configuration ID), product feeds as JSON and Google XML in all languages, cart links and data from the configurator. Documentation with examples in curl, JavaScript and Python: API documentation.
How do I get the stock list?
As a CSV at https://api.modula24.com/stock.csv?warehouse=hamburg – with &lang=en, fr or it in the respective language, with &in_stock=true only available items. The prices in it are the shop prices. You can query individual items via https://api.modula24.com/stock/.
Can I calculate shipping costs via API?
Yes: POST https://api.modula24.com/payments/api/checkout/shipping with a cart (variants and quantities) or weight and destination country returns all shipping options with price and delivery time. For a saved configuration, ?config= is enough. Details in the API documentation.
How do I create a link that puts items directly into the cart?
With https://modula24.com/cart?add=VARIANTEN-ID:MENGE,VARIANTEN-ID:MENGE – the variant IDs are listed in the product feeds. Only available variants are added; the customer sees a notice about what ended up in the cart.
Where do I find the product feeds?
At https://modula24.com/feeds/products.de.json (or .en, .fr, .it, .ja) with all products, variant IDs, prices and availability, and as a Google Shopping feed at https://modula24.com/feeds/google.de.xml. The feeds are regenerated with every change in the shop.
About us and contact
Who is behind Modula24?
Modula24 LTD., based in Hong Kong, operates the shop; warehouse and shipping are in Hamburg.
How can I reach you?
In the live chat at the bottom right (the AI assistant answers immediately, and our team takes over if needed) or by email at service@modula24.com, Monday to Friday 8 am–6 pm (German time).
Are you connected to USM?
No. We are an independent supplier of compatible parts. USM and USM Haller are trademarks of USM U. Schärer Söhne AG; we use the name only to describe compatibility.
USM Haller: original, used or compatible parts? The comparison
More questions? Live chat at the bottom right or service@modula24.com