sand required for 1000 sq ft construction In terms of Kgs, Density of Sand = 1600Kgs/m 3. Given this, a golf course that backfills two aerations annually could apply 14 cubic feet of sand per 1,000 square feet during aeration.
The joints should be filled up to 1/8 inch (3mm) below the paver's edge or chamfer. It's best to compact in several directions to ensure there are no air gaps or voids in the joints. You'll want to repeat sweeping and compacting until the joints are filled and consolidated. (Keep in mind, narrow joints require more care to completely fill.)