Concrete
40 Tubular steel pipe3/8” Plywood
.
formwork supporting wall2” Steel angle
2x4 Support Post
#3 Rebar (3/8”)
4000 psi Concrete
Drainage Box
NOTES1.90 " outside diameter/ 40 Tubular steel pipe3/8” Plywood2” Steel angle
NOTE: supports the coping once concrete is poured and attached to it with bolts
• 2x4 Support PostNOTE: Support the coping and the formwork for the concrete wall.• 4000 psi ConcreteNOTE: There are not standard expansion joints used but a controlled
hair line cracking. There are also steel expansion joints that remain with in the concrete creating a thin expansion joint.
• Drainage BoxNOTE: This types is used with there is a below grade drainage. These
are boxes made from plywood and will have to be cleaned out from time to time. There is also another method for below grade and that is using a 4” PVC pipe that is on a downward pitch of 1/4” per foot.
Steel/Wood Frame
Metal Railing
5/8” Plywood Plywood Spacer40 Tubular steel pipe
Surface Material
Steel or wood 2x4
Cross Members Steel/Wood
½” HD Polyethylene
11 gauge Steel Sheeting
NOTES• 1.90 " Outside diameter/ 40 Tubular steel pipe• Steel or wood 2x4NOTE: Either one of the material may be used. They
create a box like structure to support the system• Cross Members Steel/WoodNOTE: Thru-Hardened screws are used to attach the
cross members and the laminate top.• 3 layers (these may vary)11 Gauge Steel Sheeting½” High Density PolyethyleneSurface Material
Surface materialsMaterial Pros Cons Cost Lifespan
Concrete -Durability, long life 30+ years -Organic Shapes, curves and bowls flow better in concrete. -Surface / Structure repairs should be minimal
-More difficult to work with -Longer build time -Expensive -Generally the most expensive surface
-Most expensive 50+ years indoor/outdoor
Skatelite© Buy Some
-Specially designed skate, BMX and inline surface -Good for BMX parks -Withstands weather better than plywood, masonite -Cheaper than concrete -Exceptionally long lifetime indoors
-Expensive -Some or all surface needs replacement in 4-6 years
-More expensive than plywood less than concrete
4+ years *outdoor heavy use 6+ years indoor heavy use
Metal -Exceptional lifespan, no surface replacement needed -Good for BMX parks -Will withstand the elements; snow, rain, ice, fog, etc...
-Absorbs heat, Gets very hot -Non porous, gets very slick with little moisture -More difficult to work with than wood, requires more labor cost to install
-Less expensive than poly- carbonate skate surfaces -More expensive than plywood
20+ years indoor/outdoor
Birch Plywood
-Smooth skateboard/inline surface -not recommended for BMX -Does not last outdoors
-Less expensive than all of the above surfaces
5+ years indoor heavy use 1+ year *outdoor
Masonite -Smooth skateboard/inline surface -not recommended for BMX -Does not last outdoors
-Less expensive than all of the above surfaces
3+ years indoor use 1+ years *outdoor heave use
Plywood -Cheap -Does not last long indoor/outdoor -Will detiorate fast
-Cheap 2+ years indoor use 1+ years *outdoor