At our landscaping supply store, we often get a lot of questions about DIY projects from enthusiastic homeowners. We are always more than happy to answer these. Take a look at some of the most frequently asked questions below, or give us a call to learn more about your project!
Yes, we recommend that walls greater than 3′ (1m), or with a heavy load, be engineered by a qualified civil engineer (some municipalities require even lower heights, such as 2′ (600mm), to be designed by an engineer). Fencing and railing may also be required. Always check with local building codes before building a retaining wall or fence.
If your concrete is in excellent condition (no cracking or deterioration), then yes, you can install pavers over concrete. The existing concrete pad must slope away from any structures at a minimum of 1” of fall for 8 feet of run to ensure proper drainage. Also, you must create a drainage layer (1” of bedding sand) below the pavers. For more information read our blog titled “Installing Pavers on Concrete.”
The order in which you apply sand and sealer definitely matters. You must apply the sand first, sweeping carefully into the joints, ensuring none is left on the surface. Once the sealer is applied, it will trap anything that is left on the surface of the landscaping pavers. Make sure the joint sand is dry before sealing.
The base material we recommend is 3/4″ crusher run gravel (6″ thick for a patio and/or walkway, 10-12″ thick for a driveway). On top of this compacted gravel, a 1” bedding of coarse sand is placed prior to laying the pavers.