Pre-Drill Option: Get your Skatelite pre-drilled, pre-countersunk and cut to size for a small convenience fee. This special option is only valid for OC Ramps products (sorry DIY ramp builders). It takes the additional headache and hours of drilling away for a small convenience fee. This is well worth the service of having these sheets prepared for you and your new skate ramp. ** We use a 1/2" countersinking bit with 1/4" head screws ** Skatelite R50 is professional grade and super durable paper composite material. Designed for daily punishment from skateboarding, scooters, BMX, and roller skates. Skatelite Pro is an outdoor material used as a final skating surface for any skateboard ramp. Skatelite R50 is an amazing product that generally will last many years without warping or bubbling. This supreme riding surface is weather/fire resistant and still holds up to the constant wear & tear of determined riders. Get free shipping with any qualified Halfpipe or Quarterpipe ramp *Shipping costs are subject to change upon product quantity & delivery address*