DIY Safety & Planning Disclaimer

Last updated August 28, 2026

Call before you dig

In the United States, call 811 or visit call811.com at least a few business days before any digging, including footings, post holes, trenches and patio excavation. Utility locating is free and, in most places, legally required. Hitting a gas, electric, water or fibre line can kill you and will certainly cost you far more than the project.

Permits, codes and rules

Building codes, setback rules, fence and structure height limits, frost depth, drainage requirements and permit thresholds vary enormously by state, county, municipality and homeowners association. A deck, pergola, shed or retaining wall that is fine in one town needs a permit and an inspection in the next. Nothing published here overrides your local authority. Confirm the requirements that apply to your property before you build.

Work you should not do yourself

• Electrical work. Outdoor circuits, GFCI protection, buried cable and any connection to your home’s panel should be done or inspected by a licensed electrician. Low-voltage lighting run from a plug-in transformer is a different matter, and we will make clear which is which.
• Gas. Any gas line for a fire pit, fireplace or outdoor kitchen is work for a licensed professional.
• Structural and retaining work. Retaining walls above the height your local code specifies, anything carrying a roof load, and anything attached to your house may need an engineer and a permit.
• Tree work near structures or lines. Hire an arborist.

Fire safety

Fire pits and outdoor fireplaces are subject to local burn rules, clearance distances from structures and property lines, and seasonal burn bans. Never site one under a pergola, tree canopy, low branches or a roof overhang. Keep a means of extinguishing the fire to hand, and never leave a fire unattended.

Tools and materials

Follow the manufacturer’s instructions and safety guidance for every tool and product you use, and use appropriate protective equipment. Cutting pavers, concrete, stone and masonry produces respirable crystalline silica dust, which is seriously harmful. Cut wet or use dust extraction, and wear suitable respiratory protection. Treated timber, concrete, sealers and adhesives all carry their own handling requirements.

Calculators and plans are estimates

Our calculators return estimates based on the figures you enter and the assumptions stated on each tool. Real sites are not rectangles, ground is not level, and materials vary between batches and suppliers. Measure your own site, allow for waste, and confirm quantities with your supplier before ordering. A plan drawing is a guide to a build, not a certified construction document.

Your responsibility

You are responsible for deciding whether a project is within your ability, for working safely, for complying with the law where you live, and for the results. To the fullest extent permitted by law, The Backyard Vault accepts no liability for loss, damage or injury arising from the use of information, calculators or plans published on this site. If in doubt, hire a professional.

Questions about anything on this page: mikekoltas@gmail.com.