BuildersCalcsTimber
This IPhone App is must have for Builders and Roofing contractors who need to quickly calculate Roofing materials or Joist sizes.
Whether your using tiles , slates or plain tiles(rosemary) your needs are catered for with this App, including amounts for Felt, Battens and Nail quantities.
With the Joist calculator all popular timber sizes are catered for including Stress graded sections and various loading conditions.