5x4m Log Cabin Base Kit

Product Code: SHS15531
  • This kit includes 80 squares. Each square measures 500 x 500mm.
  • Quick and easy to install due to its simple interlocking design, a great alternative to laying heavy slabs or concrete.
  • Suitable to lay on any reasonable level surface.
  • Lightweight yet still provides a strong and durable base for your log cabin.
  • Heavy-duty membrane included
  • Accessories
  • Frenchdrain with Free Anchor Blocks

    Frenchdrain with Free Anchor Blocks

    Frenchdrain with Free Anchor Blocks - £138.99

    Designed to be inserted into the perimeter cells on 2 sides of the ProBASE, exactly where the rainwater runs off the garden building’s roof, these ProBASE French drains prevent water splashback and the resulting buildup of soil particles on the wooden walls, so reducing the risk of rot.

    Buy these ProBASE French drains from us and receive a FREE set of ProBASE anchor blocks too. Designed to fit into any cell within the ProBASE, they keep the building secure, even in severe winds.

    The blocks should be attached to the garden building’s timber frame by either standard screws or nuts and bolts.

    If using screws, position the building over the anchor blocks and drive a screw through both the timber frame and each anchor block. If using nuts and bolts, pre drill the frame and anchor block before filling the ProBASE grids with gravel. Then, lift up the corner of the base to position each bolt, fill the grids with gravel, reposition the building, and secure it to the ProBASE anchor blocks with nuts.

    These anchor blocks are pull tested up to 60kg of uplift per anchor. Please note that fixings are not included.

    This pack contains 212 French Drain Blocks and 8 Anchor Blocks.

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Frenchdrain with Free Anchor Blocks
Frenchdrain with Free Anchor Blocks


Brand ProBASE
Size 16' x 13'
Guarantee 2 years


Quick and simple to install, the 5 x 4m Log Cabin Base Kit is ideal for avoiding the hassle of laying slabs or concrete when preparing a base for a new log cabin. Its interlocking design makes it easy to put together and, though lightweight, it provides a very strong and durable base for the cabin.

Made from 100% recycled plastic, this log cabin base is eco-friendly. Also, it can be reused if the garden cabin is repositioned. The base allows for ventilation and drainage under the log cabin, helping to keep the floor dry.

To install the base, simply interlock the square grids together and lay onto a firm, level area of ground. We recommend using 15kg of 10m pea gravel per square (gravel not included).

Each square is 500 x 500 x 40mm. This pack contains 80 squares and heavy-duty, commercially-graded weed membrane.

  • Super strong interlocking grid system log cabin base
  • Simple to lay and assemble
  • Eco-friendly high quality recycled plastic
  • Ventilated design
  • Heavy-duty membrane included
  • Comprehensive instructions and customer service support
  • 2 year guarantee

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We offer FREE Delivery to the majority of mainland postcodes. Please use our postcode checker above or within checkout to check delivery is available to your area.

Please Note - delivery is NOT available to the following locations: Isle of Man, Isle of Wight, Northern Ireland, Channel Islands, Scottish Islands

All of our products are delivered direct to your home. Wherever we can, our drivers will deliver the product to the location on your property that you specify.

It is important though that the drivers have suitable access and no restrictions for them to be able do this. We would not risk damaging your property whilst delivering a product to an un-safe location. We will not be able to go through your property.

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  • Purchase Rate 23.9% p.a. (variable)
  • Representative 23.9% APR (variable)
  • Assumed Credit Limit £1200