Home improvement guides
Short, practical explainers on the questions people actually search for before a job — how much paint a room takes, how many tiles cover a floor, how much concrete fills a post hole, how to size a solar or air-conditioning system. Every guide shows the method behind the estimate and links to the free calculator that will run the numbers for your own project.
Paint & walls
How much paint do I need? Working it out properly
Work out how much paint a room needs from its wall area, the number of coats and the coverage printed on the tin — with the deductions most people forget.
6 min read · 485 words
How to calculate wall area (and why it matters)
A simple method for measuring wall area room by room, plus how to handle openings, ceilings and awkward shapes without double-counting.
5 min read · 437 words
Flooring
How many tiles do I need? Waste, cuts and boxes explained
Work out how many tiles a floor or wall needs, why the answer is always more than area divided by tile size, and how much spare to keep.
6 min read · 464 words
Laminate vs vinyl vs engineered wood: choosing a floor
A practical comparison of laminate, luxury vinyl and engineered hardwood on cost, water resistance, wear and fit, and how each changes the quantity you order.
7 min read · 475 words
Concrete & masonry
How much concrete do I need? Volume, waste and delivery
Calculate the volume of concrete for a slab, footing or post hole in cubic yards and cubic metres, and decide between ready-mix delivery and mixing by hand.
6 min read · 420 words
How many bricks per square foot? The numbers and the joints
Why a square foot of brickwork holds about seven bricks, how the mortar joint changes the count, and how much waste to allow for a real wall.
5 min read · 424 words
Roofing
Lumber & framing
Landscaping & yard
How much mulch or topsoil do I need? Depth, volume and weight
Work out the volume of mulch or topsoil a bed needs in cubic yards and bags, choose a sensible depth, and check the weight before ordering a delivery.
5 min read · 443 words
How to lay sod: preparation, quantity and aftercare
Work out how much sod a lawn needs, why preparation matters more than the laying, and how to keep new turf alive through its first weeks.
6 min read · 437 words
Energy & solar
Is solar worth it? Sizing a system from your own usage
How to size a solar array from your electricity bill, what roof area it needs, and how to judge whether the numbers work where you live.
7 min read · 469 words
How to size an air conditioner for a room
Estimate the cooling capacity a room needs in BTU and tons from its size, ceiling height, sun exposure and occupancy, and why oversizing is a mistake.
6 min read · 441 words