Allowances vs actuals: pricing garage doors and gates that holds up at final account

Every QS knows the moment. The allowance went into the cost plan months ago. The firm price comes back at tender, and it does not match. Now you are explaining a variation, chasing a credit, or wearing the gap yourself.

Garage door pricing is a small line in most projects. It is also one of the easier lines to under-allow, because the number moves with details that are not obvious at concept stage. The same goes for gates. Here is where the gap opens up, and how to close it before it costs you.

Allowance, PC sum, provisional sum: get the right one in the plan

The label you use sets the expectation, so use it deliberately.

• A working budget figure carried before firm prices come in. Useful early. Risky if it stays in the plan too long.
• Prime cost (PC) sum. A sum for the supply of a door or gate where the actual product and supplier are not yet chosen. Install and margin usually sit outside it.
• Provisional sum. A figure for work that cannot be fully described or measured at tender. It adjusts to actual cost once the scope is fixed.

The mistake is treating an allowance as if it were a firm price. An allowance is a placeholder. It tells you what you hoped to spend, not what the job will cost.

Where garage door pricing drifts (gates too)

The headline product price is the easy part. The number moves with the things around it.

• Opening size and door weight. A wider or taller opening changes the panel, the spring tension and sometimes the motor. A door priced for a standard single will not cover a high-lift double.
• Wind zone. This is the big one in New Zealand. A garage door rated for a Low or Medium wind zone is a different price to one built for High, Very High or Extra High under NZS 3604. Plenty of sites in Canterbury and coastal Auckland sit higher than people assume. Allow for the wrong zone and the actual will bite.
• Motors, remotes, safety beams and access control all add up. An automated sliding gate is a different conversation to a manual one.
• Power and cabling. Automation needs a power supply at the gate or door. If the electrical work is not in someone’s scope, it lands in yours.
• Site access and backing. Tight access, structural backing for tracks, or a gate run that needs levelling all change the labour.
• Council and compliance for gates. Gates near a boundary or opening onto a road can trigger sight line rules, setbacks or consent. That is cost and programme, not just product.

The gaps that show up at final account

These are the ones we see catch people out.

• Pricing the door, not the install, the hardware and the make-good.
• Carrying a single allowance across a project where the wind zone changes from one elevation to another.
• Forgetting the power supply for an automated gate, then finding no one priced the run to the gate post.
• Allowing for a manual gate at concept, then automating it at design without lifting the number.
• Treating lead time as free. A door or gate that suits the budget is no help if it does not land in the programme.

Firm the number up before it firms up for you

You do not need the full design locked to get a real price. You need the few details that actually move it.

• Get a measure and quote early on anything non-standard. Oversized openings, high wind zones, automation and gates are where allowances drift most. Those are the lines worth pricing properly first.
• Confirm the wind zone before you set the figure. It is the single biggest swing on a garage door price, and it is knowable early.
• Pin the automation scope. Manual or automated, and who carries the power supply. Settle it before it settles itself as a variation.
• Check lead times against your programme now, not in December. New Zealand supply tightens before the Christmas shutdown. A firm slot in October is worth more than a sharp price you cannot install in time.

The aim is simple. Carry a number you can stand behind at final account, not one you have to defend.

Want the allowance to match the actual

We measure and quote garage doors and gates across Auckland and Christchurch, and we give you a firm price you can put straight into the cost plan. Wind zone, automation, lead time, the lot. No runaround, no surprise at final account.

Send us the openings, the elevations and the wind zone, and we will price it properly. Get the actual on paper before it costs you the difference.

Kinetic Access. Measured, quoted, installed.