PROBLEM TO BE SOLVED: To provide a pet circle with a recessed part capable of reliably closing a circle body with the recessed part by eliminating an increase in the length of a virtual linear part in a linear direction due to a thickness in a front/back direction of a fence member in which the recessed part is created.SOLUTION: A pet circle with a recessed part is premised on a pet circle 1A with a recessed part to be configured by connecting edges of a plurality of fence members 2 to each other in a longitudinal direction so that both sides of linear parts 11a and 11b oppose each other on front and rear sides and the edges thereof in the longitudinal direction oppose each other only on the rear side in corner parts 12. A recessed part 5A across two virtual linear parts 5a and 5b of a circle body 10A is formed by a pair of short fence members 50 substituted for respective fence members 2 of the circle main body 10A. The length in the longitudinal direction of a frame body 501 made of the respective short fence members 50 is set to be shorter by a length increased due to a thickness in the front/back direction of the short fence member 50.COPYRIGHT: (C)2014,JPO&INPIT【課題】凹部を形成する柵部材の表裏方向への厚みによる仮想直線部の直線方向への長さの増大を解消し、凹部を有するサークル本体を確実に閉成することができる凹部付きペット用サークルを提供する。【解決手段】複数枚の柵部材2の左右方向端同士を、直線部11a,11bにおいて表裏両側辺を突き合わせた状態で連結する一方、角部14において左右方向端同士の裏側辺のみを突き合わせた状態で連結して構成される凹部付きペット用サークル1Aを前提とする。サークル本体10Aの2つの仮想直線部5a,5bに跨る凹部5Aを、サークル本体10Aの各柵部材2から置換された1組の短尺柵部材50により形成する。この各短尺柵部材50の枠体501の左右方向の長さを、当該各短尺柵部材50の表裏方向の厚みによって増大する増大分の長さだけ短く設定している。【選択図】図1