Ground Sleeves, T-Plugs & Plates

Ground Sleeves for Volleyball, Tennis & Foul Poles

Ground sleeves are the permanent, in-ground fitting that a removable post or pole drops into, and getting the size right matters more than any other spec on this page. For outdoor volleyball, Douglas offers steel and aluminum ground sleeves in 24" and 36" lengths sized for 3" and 4" square posts, including a sand-volleyball-rated 36" steel sleeve with collars. Jaypro's outdoor ground sleeve line runs 3-1/2" for standard uprights, plus dedicated TP-150G sleeves built for the TP-125/TPGS-35 tennis post series. If you're outfitting a baseball or softball field, Jaypro also carries foul pole ground sleeves matched to pole height — 12/15 ft., 20 ft., 30 ft., and 30/40 ft. options that step up through collegiate and professional specs, which is where the collection's higher price points ($1,000+) come from.

Floor Sleeves, T-Plugs & Cover Plates for Indoor Courts and Gyms

Indoor gym-floor installs call for a different family of hardware: recessed floor sleeves with a flush cover so the floor stays clear when the post isn't in use. Jaypro's floor sleeves come in 3-1/2", 3", and 2-3/8" upright sizes with chrome or brass cover options, plus a 7-1/2" replacement chrome cover plate if an existing plate gets damaged. For access-frame systems, Jaypro also stocks turf cover plugs and half-pole plugs sized for the 18 in. MAX-1 Access Frame — the T-plugs that keep an unused sleeve opening safe and level with the surrounding turf or floor. First Team adds its own FT52 top ring and lid for floating floors and an FT50 threaded socket, both aimed at multi-sport and volleyball setups on suspended gym floors.

Anchors & Specialty Plugs

Beyond straight sleeves, the collection covers the anchor hardware that pairs with them. Jaypro's floor anchors (1-1/4" cylinder) come in standard, floating-wood-floor, and covered versions, while base and center anchors handle baseball backstop and net-post applications. First Team's FT8000A tennis net ground anchor and FT8000PVC pipe sleeve serve the same purpose for portable net systems, and the FT18 ground sleeve rounds out First Team's lineup for lighter-duty post installs. If you're running a beach volleyball program, Jaypro's sand ground inserts are built specifically for in-sand system installs, and the Shot Cage (SC-25) ground sleeve set of 4 is sized for track-and-field shot put cages.

Matching Hardware to Your Post or Pole

Because sleeves, plugs, and caps are size- and brand-specific, cross-check three things before ordering: the post or pole's outer diameter (2", 2-3/8", 2.875"-3", 3", 3-1/2", or 4"), whether the post is round or square, and whether the install is outdoor (concrete/turf) or indoor (finished gym floor). Jaypro's 2.875"-3.00" aluminum cast 3-piece cap and mechanical ground sleeve plug (4 in.) are examples of finishing hardware meant to match a specific sleeve size rather than a specific sport, so confirm the upright diameter on your existing post before buying. For semi-permanent play equipment like Jaypro's 2 in. outdoor tetherball pole, the ground sleeve is sold as part of matching the pole to a fixed in-ground base.

Brands Carried: Jaypro, Douglas, First Team & Gared

Jaypro is the deepest line in this collection at 34 SKUs, spanning floor sleeves, foul pole sleeves, tennis post sleeves, anchors, and access-frame plugs. Douglas contributes 12 steel and aluminum ground sleeve options built around 3" and 4" square volleyball posts, including sand-rated hardware. First Team's 7 products focus on tennis net anchors and floating-floor sockets, and Gared rounds out the collection with additional ground-set hardware. Across all four brands, prices in this collection span $18 for basic plugs and plates up to $3,682 for full-length professional foul pole ground sleeve systems.