For shipments to the lower 48 states, we ship via FedEx Ground Service. Please allow 3-5 business days for shipping, as our kits are custom-built when you order. Some larger kits may take a little longer. All other shipments to international and extended USA destinations ship by US Postal Service priority mail. We ship domestic orders over $300 for free to the lower 48 states. Click here for more information about our shipping policy.