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  1. Image for Cotswold Oak Internal Cottage Door Unfinished
    Cotswold Oak Internal Cottage Door Unfinished

    Starting at £85.00 Inc. VAT

  2. Image For Milano White Pre-Finished Internal Door
    Milano White Pre-Finished Internal Door

    Starting at £95.99 Inc. VAT

  3. Image for Barlo Slieve H22S Double Horizontal Designer Radiator - 723mm Height
    Barlo Slieve H22S Double Horizontal Designer Radiator - 723mm Height

    Starting at £510.86 Inc. VAT

  4. Image for VELUX GGL 2070 CK02 55x78 White Painted Centre Pivot Roof Window
    VELUX GGL CK02 2070 White Painted Centre Pivot Roof Window - 55x78cm
    £218.69 Inc. VAT

  5. Image for VELUX GGL 2070 MK04 78x98 White Painted centre pivot roof window
    VELUX GGL MK04 2070 White Painted Centre Pivot Roof Window - 78x98cm
    £251.29 Inc. VAT

  6. Lowest price
    Image for SuperFOIL SF19+ Multi-layer Thermal Insulation - 1.5m x 10m
    SuperFOIL SF19+ Multi-layer Thermal Insulation - 1.2m x 10m (12m2)
    Special Price £96.00 Inc. VAT Regular Price £100.00 Inc. VAT

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Building Supplies Online - BSO For the Trade & DIY

Building Supplies Online (BSO) was established with the intention of offering a quality range of building products, from industry leading manufacturers, direct to the trade and public at trade prices.

Look for our FSC® (C149588) certified products

Our customers are at the heart of our business and we continually strive to deliver excellent customer service and experience.

Our dedicated account managers are able to offer advice and help with large, complex orders, ensuring our customers are able to order the right products at the best price.

Building Supplies Online offer the largest number of building supplies (over 40,000) available to purchase online, with UK Nationwide Delivery and Next Day Delivery available on certain ranges. At BSO we pride ourselves on our ability to offer a wide variety of leading brand building supplies at great prices, without compromising on quality or performance. Our extensive range of products includes VELUX Windows, Doors, Bathrooms, Tiles, Paving, Insulation, Fencing, Fixings, Building Materials and more. Explore our website to discover more. Our product choices are extensive, for example we have a great range of Internal Doors to buy online with over 6,000 doors in stock.

We are now the preferred choice for many Trade customers and DIY home improvement projects, due to our competitive prices on our extensive range of quality, well known brands.

These prices are due to BSO sourcing methods; our building supplies are sourced ethically using a trusted supply chain, which allows us to be a reliable, trusted builders' merchant.

Be sure to check out our Monthly Offers for the latest deals and freely speak to our experts if you have enquiries regarding any products or building supplies.

We offer UK nationwide delivery on all our products with a range of products available for next day delivery! BSO are a market leader in the DIY (Do it yourself) market. We are a DIY store online and offer products to enable you to carry out home improvements without the need to employ trades people. Instead of looking for a DIY store near me why not take advantage of our nationwide delivery service and order from the comfort of your own home. With our in-house experts we can offer you DIY advice on a range of products to help you decide on the right products. As an online Builders' Merchant you are can browse our extensive range of products easily and as we aren't limited by floor space, unlike a local DIY store, we are able to give you the best choice at trade prices.

Unlike your local builders' merchant, we deliver nationwide. The advantage of using us is that you can pick your delivery day as opposed to it being delivered within a window. When looking for builders merchants nearby, consider using our online service as we are specialised in dealing with the trade. Our dedicated trade team can help you with your order and make sure you get what you want, when you need it.