The work covers entrance ramps, ramps between levels of a lot, accessible parking access aisles and the walkways that connect them. Most callers are property managers or businesses that have been told they are out of compliance, or a GC building it into a new project. The pour is simple concrete; the value is in getting the geometry exactly right.
| What changes | Effect on your price |
|---|---|
| Total rise to climb | The height being climbed sets the run length and the number of landings, because the slope is capped by the standard. Rise is the first thing measured and the biggest driver. |
| Landings and turns | Every ADA ramp needs level landings at the top, bottom and each turn. More turns means more landings and more forming. |
| Slope compliance | The running and cross slopes are built to the ADA maximums and checked by an inspector. Pouring to those numbers the first time is the value. |
| Railing anchors | Where the rise requires a handrail, the anchor points are set in the wet concrete. The railing itself is usually a separate trade. |
| Base condition | The wildcard. Sound compacted gravel can lower the price. A failed base that has to be rebuilt raises it more than anything else on this list. |
| Concrete truck access | Tight lots, long wheelbarrow runs and pump trucks all add labour to the exact same square footage. |
The total height to climb sets everything. We measure the rise, work back to a compliant slope, and lay out the run and the landings so the finished ramp meets the standard before a form is set.
The base is prepped and forms are set precisely to the running and cross slopes, because on an ADA ramp the forms are the compliance, not a suggestion.
Reinforcement is placed, and where the rise requires a handrail the anchor points are set into the wet concrete so the railing has something solid to bolt to.
The ramp is poured to the formed slopes, finished with a slip-resistant texture, and any required detectable warning is set at the transitions.
The concrete is cured, and the finished slopes and landings are there to be checked against the standard, which is the point of building it to the numbers in the first place.
Call or text with the rough size and what is there now. A photo of the space answers half the questions before anyone drives out.
Someone walks the job, measures it, checks access and drainage, and leaves you a written number. Free, and there is no pressure attached to it.
Once you approve the price the work gets scheduled around the weather window. You get a start date and a realistic finish date, not a vague week.
There is very little discretion in this category. Almost every dimension is prescribed, and the value a contractor adds is getting them right the first time.
The maximum running slope for an accessible ramp is one in twelve, meaning one unit of rise for every twelve of run, and the maximum cross slope across the ramp is far shallower still, effectively close to level. Shallower than the maximum is always acceptable and is usually more comfortable. Steeper is not a judgement call and is not something a site condition excuses. Where the required run genuinely will not fit, the answer is a switchback with landings or a different route, not a steeper ramp.
Landings are required at the top and the bottom of every ramp, wherever it changes direction, and at maximum intervals of vertical rise through a long run. They have to be level in both directions and large enough for a wheelchair to rest and turn, with additional clearance where a door swings onto them. Landings are the most commonly undersized element on a non compliant ramp.
Handrails are required on both sides of a ramp above a modest rise, continuous through the run, graspable, extending past the ends, and set at a specified height. Edge protection stops a wheel rolling off the side. The running surface must be firm, stable and slip resistant. All three are requirements rather than upgrades, and all three are cheaper to build in than to retrofit.
The standard applies most strictly to public accommodation, but the geometry helps everyone.
Residential ramps for ageing in place or wheelchair access are not usually subject to the same enforcement, but building to the same slope and landing standard is strongly advisable anyway, because those numbers exist for usability rather than paperwork. A steeper home ramp that technically nobody inspects is still a ramp that is hard to climb and dangerous when wet.
Any place of public accommodation must provide an accessible route, and the ramp is frequently the element that gets measured in a complaint or an audit. The details that most often fail are cross slope, landing size and handrail extensions, none of which are expensive at construction and all of which are expensive to remedy. Build to the standard and keep the survey documentation.
An accessible ramp is the one concrete element on a property where the dimensions are set by federal standard rather than by the designer. It gets surveyed, built to numbers and measured afterward, so the sequence is heavier on layout than on concrete.
Everything follows from the vertical distance the ramp has to climb. That number sets the length, the number of landings and whether the run is feasible in the space available at all. Measuring it accurately is the entire design step.
At the maximum permitted slope, every foot of rise needs twelve feet of run. Landings are required at the top and bottom, wherever the ramp changes direction, and at intervals through a long climb. Landing dimensions are specified, not approximate. This is where a ramp is won or lost, because a design that will not fit has to be discovered on paper.
Footings where the ramp is structural or elevated, compacted base where it sits on grade. Anywhere it abuts the building, the connection detail matters because the two will move differently.
Forms set precisely to the surveyed slopes. This is the step that decides compliance, and it is checked with a level and a story pole rather than by eye. A form set half a percent steep produces a finished ramp that fails.
Handrail anchors are set into the forms before the pour. Rails drilled in afterward are weaker, uglier and more likely to loosen.
Placed and finished with a broom texture across the direction of travel. A ramp surface has to be slip resistant, which rules out a smooth trowelled finish entirely.
Truncated dome surfaces are installed where the route meets a vehicular way or where the standard otherwise requires them, in the specified colour contrast.
The finished slopes are measured before sign off. It is far cheaper to check the forms twice than to saw out a finished ramp.
Standard pour weather rules. The additional pressure is that ramps are frequently the accessible entrance to an operating building, so the work is often phased or temporarily ramped so access is never lost.
ADA Ramps & Accessible Concrete across Winston-Salem, Kernersville, Walkertown, Rural Hall, Union Cross, Pfafftown, Clemmons, Lewisville, Stanleyville, Belews Creek, King, Germanton, Oak Ridge, Colfax, Summerfield, Stokesdale, Wallburg, Midway and Welcome.
Most jobs touch more than one of these. If you are already pricing ada ramps & accessible concrete, it is usually worth pricing anything else you have been putting off in the same visit, because the mobilisation is already paid for.