What is a Philibert truss?
A Philibert truss is a curved roof truss built up from short sawn boards in staggered layers — the forerunner of the glulam arch.
What is Perspex?
Perspex is a brand name for PMMA (acrylic) sheet: crystal clear, light and weather-resistant, but scratch-prone and highly expansive.
Sinking Your Own Water Well in the Garden: Method, Costs and the Notification Rule

Sinking your own garden water well? Learn which method, how deep you can get yourself, what it costs, which pump to choose and why you must notify.
Building an emergency water supply: how to do it right

Plan for 3 litres of water per person per day, at least 3 days. Here’s how to store an emergency water supply safely and purify water when it runs out.
How to build a catio: the complete step-by-step guide

Building a catio yourself? How to pick mesh, sizes, roofing and anchoring. Full guide with permit rules, costs and common mistakes.
Build an outdoor bar from scaffold wood: the complete guide with measurements and costs

Want to build an outdoor bar from scaffold wood? Here’s the complete guide with the right measurements, materials list, costs and finishing tips for outdoors.
What is the Perpendicular style?
The Perpendicular style is the last phase of English Gothic, recognisable by strictly vertical tracery, vast windows and fan vaults.
What is permeability?
Permeability is the extent to which a material lets liquid or gas pass through — governing groundwater flow, concrete durability and how well soakaways work.
What is perlite?
Perlite is an expanded volcanic rock used as granules for insulation, lightweight mortars and plaster — non-combustible and rot-proof.
What is a round timber stake?
A round timber stake is a pointed round wooden pile driven into the ground for revetments, bank protection and fencing.
