Frequently asked questions

  • What is door schedule?

  • How do I measure the rough opening?

  • What is rough opening?

  • How can I measure my door size?

  • What is the wait time for plywood from order to delivery?

    The wait time for plywood is on average:

    Europe - up to 15 days
    America, Asia, Africa – up to 20 days
  • What size packages are used for packing plywood and how many sheets do they contain?

  • How do I place an order?

    There are several ways of placing your order with VULDI:

    Online order

    Choose a "goods" and configure it according to your needs
    Add to cart; If you need to order more than one "goods" you can continue shopping and add more products to you cart
    Proceed to safe and secure checkout.
    Order By Email

    Email our sales department at
    Order By Phone

    Call us at the number +48 (22) 390-6-380
  • What is the difference between birch plywood and plywood made from other types of wood?

    Birch plywood is stronger than many other wood boards. It is 20% stronger than pine and spruce plywood, and 2.5 times stronger than aspen plywood. In terms of its weight to strength ratio birch plywood is 3 times better than steel.
  • How many packages (the total volume) fit into a truck, container, or train car?

    • one
    • duo
    • .....
    • .....
    • .....
    • .....
  • Cooperation

    Rarely answered answer
    You may measure your door by taking the following measurements
    • Measure the width of the door in 3 locations - top, middle and bottom and take the biggest measurement
    • Measure the height of the door in 2 location - by the handle and by the hinge side. Take the biggest measurements.
    • Measure the width of the door in 3 locations - top, middle and bottom and take the biggest measurement.
    • This is the opening in the wall where pre hung door is being installed. Rough opening must be 2 - 2.5" wider and 1.25" higher than the door slab to leave room for jambs and constructing foam.