Holy Thursday makes two important demands on the church: foot washing and the altar of reposition. The former doesn’t really make many demands on the space, but the place of reservation is very important, especially for a church that doesn’t possess a separate Eucharistic chapel:
§ 82 § Following the Mass of the Lord’s Supper on Holy Thursday the Blessed Sacrament is carried to a place of reservation. If the Blessed Sacrament is ordinarily reserved in a chapel separated from the central part of the church, the place of repose and adoration will be there.* If there is no reservation chapel, then a space for reposition with a tabernacle should be prepared for the occasion.
The starred note is from the CDWDS: Circular Letter Concerning the Preparation and Celebration of the Easter Feasts [PCEF] (January 16, 1988), no. 49: “For the reservation of Blessed Sacrament, a place should be prepared and adorned in such a way as to be conducive to prayer and meditation; that sobriety appropriate to the liturgy of these days is enjoined, to the avoidance or suppression of all abuses.”
The important thing is that the separate chapel, if part of the premises, is to be used. Otherwise, more preparation will be needed.
All texts from Built of Living Stones are copyright © 2000, United States Conference of Catholic Bishops, Inc. All rights reserved. Used with permission.