An anchoring device for supporting a post from a support surface. The anchoring device comprises a base, at least one stanchion extending from the base, and a plate attached to the stanchion opposite the base. A plurality of side supports is included with each side support attached to and extending from the base. The side supports are also attached to the plate and extend past the plate. First and second guides are included with each guide attached to the plate and each side support. Each guide extends away from the base.