# Koelner Universal Rafter-Purlin Anchor 250x35 mm

**URL:** https://aio.lv/en/product--koelner-d-sp-250--12467030
**Data updated:** 2026-05-18 09:33 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner
**Manufacturer code:** D-SP-250
**EAN:** 5906675452326
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-d-sp-250--12467030

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Koelner universal rafter-purlin anchor, model D-SP-250, is a high-quality structural connector designed for timber construction. Measuring 250x35 mm, this anchor provides reliable reinforcement for rafter and purlin connections in roof framing systems. It ensures structural stability and durability in various woodworking projects. Each package contains 50 pieces, making it an efficient solution for professional construction and renovation tasks.

## Long description

The Koelner universal rafter-purlin anchor 250x35 mm is a professional-grade structural connector engineered for robust timber construction. Designed to provide a secure link between rafters and purlins, this component is essential for maintaining the integrity of roof framing systems. Its dimensions and material composition ensure that it can withstand the mechanical stresses typical in wooden roof structures, offering long-term stability for various building projects.
Advantages
This anchor offers exceptional structural reinforcement by effectively transferring loads between timber elements, which significantly enhances the overall rigidity of the roof frame. The universal design allows for versatile application across different types of rafter-purlin joints, simplifying the installation process for contractors. Constructed from high-quality materials, the anchor provides excellent resistance to environmental factors and mechanical wear, ensuring that the connection remains secure over the lifespan of the building.
Suitable for
Securing rafters to purlins in residential roof construction
Reinforcing timber joints in wooden frame structures
Professional roof framing and renovation projects
Structural timber connections requiring high load-bearing capacity
When it may not be suitable
This anchor is specifically designed for timber-to-timber connections and is not suitable for anchoring wood directly into concrete or masonry without appropriate adapters. It should not be used in environments with extreme chemical exposure that could compromise the integrity of the metal.
Key specifications
Dimensions: 250x35 mm
Material: High-strength structural steel
Application: Rafter-purlin connection
Quantity per package: 50 pieces
How to use
To install the rafter-purlin anchor, position the connector over the joint where the rafter meets the purlin. Ensure the anchor is aligned correctly to distribute the load evenly across the timber surfaces. Use appropriate structural nails or screws through the pre-drilled holes to fix the anchor firmly into both wooden members. It is critical to use the full number of fasteners as specified by local building codes to achieve the intended structural performance.
What to consider before purchase
Verify the dimensions of your timber rafters and purlins to ensure compatibility with the 250x35 mm size.
Check the total number of connections required for your project to determine the number of packages needed.
Ensure you have the correct type of structural fasteners compatible with the anchor's hole diameter.
Usage recommendations
Always follow the structural design plans provided by a qualified engineer or architect when installing timber connectors to ensure compliance with safety standards and building regulations.

## FAQ

### How much does the Koelner Universal Rafter-Purlin Anchor D-SP-250 cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 114 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Koelner products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Koelner service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12467030/68769325_large.webp