Question 1

What is the best base for a heavy log cabin?

Accepted Answer

For heavy structures, we recommend a steel-reinforced poured concrete base. This spreads the load evenly and prevents subsidence. (Please note: steel reinforcement incurs an additional cost).

Question 2

Do you use a damp proof membrane (DPM)?

Accepted Answer

Yes. For any habitable garden room or office, we install a heavy-duty DPM within the concrete to prevent rising damp and protect your timber floor. (This is an optional extra).

Question 3

How deep do you dig for a concrete base?

Accepted Answer

Standard practice involves excavating to stable ground, installing a compacted MOT Type 1 sub-base, followed by the concrete slab. Depth varies by soil type (e.g., clay soil requires deeper preparation).

Question 4

What is 'tanalised' timber and why do you use it?

Accepted Answer

Tanalised timber is pressure-treated to resist rot and insect attack. We use this for all our raised timber frames to ensure a long lifespan, even in damp conditions.

Question 5

How do you ensure the base is perfectly level?

Accepted Answer

We use professional laser levels throughout the installation process. A perfectly flat base is critical for seamless door closing, warranty protection, and for well-fitting greenhouse glass.

Question 6

Can you build a base over a manhole cover?

Accepted Answer

Yes, but we must install an inspection hatch or modify the drainage access. We have decades of drainage expertise to handle this correctly.

Question 7

What mix of concrete do you use?

Accepted Answer

We use a high-strength C30 or C35 concrete mix depending on the application, ensuring maximum durability and frost resistance.

Question 8

Do you use steel reinforcement mesh?

Accepted Answer

Yes. We use steel rebar or mesh in our concrete pads when needed to increase tensile strength and prevent cracking under heavy loads like hot tubs. (This is an additional cost).

Question 9

Is a slabbed base cheaper than concrete?

Accepted Answer

Generally, yes. Paving slabs are a cost-effective solution for lighter items like greenhouses and tool sheds, offering a neat, permeable finish.

Question 10

How long does concrete need to cure before building?

Accepted Answer

While it sets hard within 24 hours, we recommend waiting 3-7 days for the concrete to reach sufficient strength for building, depending on the weather and the weight it will support.

The Right Foundation,
Built to an Engineering Standard.

Poured Concrete

Raised Timber Frame

Slabbed Base

Ground Screw Base

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The Right Foundation, Built to an Engineering Standard.