Stirling Castle is situated on top of atop the Castle Hill in Stirling. It is one of the largest and most significant castles in Scotland. The site...
Landscape Gravel. 1  The average cost for crushed rock gravel or lava rock is $640 for 32 square feet of gravel. 2  The minimum cost that property owners pay for crushed rock gravel or lava rock is $140, which covers 7 square feet of gravel.
1 Hiring a handyman, gardener or landscape designer to install a gravel walkway can cost $300 -$2,000 or more, depending on materials, local rates and the complexity of the layout. To estimate the cubic yards required for a specific project, multiply length by width by depth and then divide by 27. 2  For example, to lay a 3 bed of gravel on a path 3' wide and 100' long, convert the 3 to 0.25'; multiply 0.25 x 3 x 100 and divide by 27, which equals 2.78 cubic yards.