Design decision
Why this idea works
A corner is often the leftover space in a small yard, and a compact pad there makes room for a little greenhouse and a working surface without disrupting the rest. The concrete keeps the greenhouse firm and dry and gives a small work area beside it, turning an awkward corner into a productive spot.
- The tradeoff
- The layout sets a clear direction, but it also commits the project to fixed relationships. Slope a corner pad to drain and confirm boundary setbacks.
- How to measure it
- Conceptual range: a corner pad measured to the greenhouse plus a small work area.
On your property
Plan it for your site
Keep the pad a grippy, rinseable surface sized closely to the greenhouse and a small work area, sloped to drain. Keep the finish easy to sweep in a tight corner.
- Size the pad to the greenhouse plus a usable small work area.
- Slope the corner pad to a clear outlet so watering drains.
- Confirm setback rules for a structure in a boundary corner.
Before forms are set
Build implications
- Confirm before estimating A pad sized to greenhouse plus work area.
- Confirm before estimating A slope and outlet that drain a corner.
- Confirm before estimating Setback rules for a boundary-corner structure.
- Measure the site and establish elevations Record boundaries, thresholds, grade changes, utilities, and the dimensions of vehicles, furniture, equipment, or structures that affect the layout.
- Test how the space will be used Check walking routes, turning paths, door swings, working clearances, maintenance access, and the route back to the house or street.
- Resolve drainage, services, and structural support Decide where water goes and coordinate drains, conduit, irrigation, fuel, electrical work, footings, and independent supports before forms are set.
- Define and estimate each concrete element Confirm the slab or footing section, base, joints, edges, and finish, then estimate simple measurable fields separately from steps, walls, drains, and supported features.
Prevent these problems
- Matching the wall footprint exactlyA small dry perimeter can improve the threshold, door clearance, maintenance access, and runoff control.
- Using one uniform thin sectionBearing walls, anchors, heavier storage, or manufacturer requirements may call for thickened edges or a footing.
- Allowing wet soil against the slabPoor grading, mulch, and irrigation can keep the pad edge damp and undermine the base or the structure above.
Next step
Turn the idea into your estimate
Enter measurements from the property. The conceptual image does not provide a takeoff.
Estimate a similar shed padQuestions this idea raises
Can a greenhouse fit in a yard corner?
A compact corner pad can hold a small greenhouse and a work area, making use of leftover space, if setbacks allow and drainage is planned. It turns an awkward corner productive.
How do I drain a corner pad?
Slope it to a clear outlet, since a boundary corner limits where water can go. Solve the route before pouring.
- Best when
- Compact & side-yard pads
- Reconsider when
- Reconsider the idea if base preparation, bearing edges, anchors, drainage, and building-manufacturer requirements cannot be resolved on the property.
- Verify first
- Slope a corner pad to drain and confirm boundary setbacks.
- Professional input
- Concrete contractor; verify the building manufacturer’s foundation requirements
Sources and further reading
- American Concrete InstituteTechnical references for small slab-on-grade pours and thickened edges.
- NRMCA CIP 6: Joints in Concrete Slabs on GradeUseful when a longer garden or greenhouse pad needs planned crack control.
- ICC model code portalCheck whether an accessory building or its slab needs a permit or setback in your area.
