How do exposed aggregate and stamped concrete differ?
Exposed aggregate reveals stones at the surface, while stamping presses a pattern into fresh concrete. Both are finishes for a continuous concrete slab.
| Exposed aggregate | Stamped concrete |
|---|---|
| The details that define your selection | |
| Stone size and color, the surrounding concrete color and how much of the stones is exposed. | Pattern, size of the imprinted shapes, concrete color and contrasting color accents. |
| What to examine across the whole area | |
| Whether you like the overall stone-and-concrete color combination, not just one attractive stone in a closeup. | Whether you like the pattern's scale and direction across the area, not just the texture of one imprinted shape. |
How do texture and upkeep affect your concrete finish choice?
For exposed aggregate and stamped concrete, texture affects how the finished surface feels, while upkeep determines the care you are agreeing to maintain. Compare the proposed stone exposure or stamped texture and the care instructions for each finished surface before choosing.
Exposed aggregate varies with how much of the stones is revealed; stamped concrete varies with the texture impressed by the selected tools. Examine representative physical samples of the actual alternatives, especially for a patio where you expect to walk barefoot. A finish name or photograph cannot establish comfort or wet traction.
For both options, request the cleaning and maintenance directions for the proposed sealer or other surface treatment. If one proposal omits that treatment, resolve the difference before comparing its upkeep with a fully finished alternative. The finish category alone does not establish a resealing schedule or an easier-care winner.
What finish details should you approve before the concrete is installed?
Before the concrete is installed, approve a finished sample that combines your selected texture, colors and final coating, together with the layout of any pattern, borders and joints. Joints are the planned separations or cuts in the slab; include their appearance in the discussion rather than treating the decorative pattern as the entire layout.
For exposed aggregate, record the chosen stone mix and how much stone will be visible. For stamping, record the pattern name, its direction and the selected colors. For both, record the proposed sealer or other final treatment, since an unfinished sample does not show the final appearance.
The American Society of Concrete Contractors explains that materials, finishing and coatings can change decorative concrete's appearance. A printed color chip is a reference, not a promise of an exact installed match.
Ask for the sample to be identified in the written proposal and agree what variation it represents. Keep photographs and the sample reference with your project records. This gives you a specific finish selection to discuss, rather than an instruction to make the concrete look like an unrelated online photo.
How should you compare exposed aggregate and stamped concrete quotes?
Compare exposed aggregate and stamped concrete quotes using the same area and underlying concrete work, then identify the price of each selected decorative finish and its included treatments. Different removal or preparation work can obscure the finish-price comparison.
Use the driveway cost guide or patio cost guide for project budgeting. Neither a generic concrete rate nor a photograph prices your selected stone mix, pattern, borders and coating.
This comparison concerns finishes on new concrete. If you want to keep an existing slab and add a decorative layer, start with concrete resurfacing and overlay suitability; an overlay is a separate installation scope.
When you are ready to request an installer, describe the project and your preferred finish. Confirm that the contractor offers that finish and can provide representative samples.
Choose your concrete project